I believe you need the infuser to take the coal from a hopper, not a belt. The game is fairly inconsistent when it comes to these type of machines (basically a 'belt animation' within the machine), some respond to belts (stampers, coilers, pipe extrusion plant), others don't (like the Infuser).

What Is Charcoal Making Machine? Charcoal making machine refers to turning biomass waste materials into charcoal powder through a series of carbonization process, so it can be also called biomass carbonization plant or biochar production equipment.

The coal enricher is the first machine that is part of the coal enrichment process, which allows you to increase the power per second of your Pyrothermic Generators substantially. By putting one piece of coal into this machine and supplying it with a tiny amount of energy it will create 1 piece of Enriched Coal .

Mid-Jurassic pyritic coals exposed at the village of Brora, northern Scotland, UK, contain a marked enrichment of tellurium (Te) relative to crustal mean, average world coal compositions and British Isles Carboniferous coals. The Te content of Brora coal pyrite is more than one order of magnitude